NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,440 terms related to cancer and medicine.

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stage 0 perihilar bile duct carcinoma in situ
(... PAYR-ee-HY-ler bile dukt KAR-sih-NOH-muh in SY-too)
Abnormal cells are found in the innermost layer of tissue lining the perihilar bile duct. These abnormal cells may become cancer and spread into nearby normal tissue. Stage 0 is also called high-grade dysplasia.